Hello Inkspace expert,
 

I have some images which is having black background, inside which there is an icon.
How to extract this icon from image background.

Remove black Background & Group RED icon as image.

I tried this :--
go Path->Trace Bitmap
Multiple scans->Colors - Scans 2 
Update" to check and "Apply
so go Object->Ungroup - select the black part and delete
But not working

Previously this way it worked. 

Is this image any special ?

Please suggest, How to do this task ?

Regards,
Dinesh

I'd ensure the bitmap is also removed... it does not automatically get deleted.

How to do this..

Please can you mention the steps to do ?

Just like you have done, but also select and delete the original image, which is behind the vector group.

> Just like you have done, but also select and delete the original image, which is behind the vector group.
See this is the result.
But red image is not separated from black background.

I did not deleted the background image, just separated them, see the attached result.

This is my SVG file.

 test.svg.txt  --> change name to -->  test.svg

Ungroup. Check Status bar at the bottom of the Inkscape window for info about selection.

you are saying to Check Status bar after UNgroup.. right ?

1.png --> after i Ungroup

2.png --> after i separate image from 1.png selection

still RED image is not extracted.

Try changing "Brightness steps" to "Colours".

>> Try changing "Brightness steps" to "Colours".
Yes working .. thanks.

Also to remove the image from background 

I have to press  drag the modified image.

Then click on page.

then drag background from modified image.

Result is expected icon.

 

You are welcome. Another option is tracing in black and color it after.

This picture is from Inkscape 1.2 (current version).